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From: Sandy Laurie (
Subject: Not a dumb question at all!
Date: January 15, 2004 at 5:50 am PST

In Reply to: Gasket for pressure cooker question posted by Lisa D. on January 14, 2004 at 8:15 pm:

The lifetime for a gasket can vary pretty widely, so it's a good idea to know what to look for as a sign it's time for a replacement.

1. Is your pc taking a lot more time to get up to high pressure than it used to? How long it takes can vary according to the temperature and quantity of the food at the time you turn on the heat and the level of the heat itself. So don't base it on one or two occasions, but rather is it taking longer consistently?

2. Feel the gasket. Does it have a tacky or sticky feel to it?

3. Has it shrunken or stretched so it doesn't fit as well as it used to?

4. Is steam escaping around the rim? This can also be a sign the gasket isn't properly seated into the lid, so try removing it and putting it back in carefully and see if that takes care of the problem.

5. Is it hard or cracked? Cracks can be hard to find, but one way to hunt them down is to bring the pc up to pressure and look for spots where steam is escaping. Release pressure and check that section of the gasket first.

You should always replace a gasket with another gasket from the same manufacturer. Even very small, nearly imperceptible, deviations in size or structure can mean it won't fit your pc properly.

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